493011289 has 2 divisors, whose sum is σ = 493011290. Its totient is φ = 493011288.

The previous prime is 493011269. The next prime is 493011307. The reversal of 493011289 is 982110394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373764889 + 119246400 = 19333^2 + 10920^2 .

It is a cyclic number.

It is not a de Polignac number, because 493011289 - 2⁷ = 493011161 is a prime.

It is not a weakly prime, because it can be changed into another prime (493011269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246505644 + 246505645.

It is an arithmetic number, because the mean of its divisors is an integer number (246505645).

Almost surely, 2^493011289 is an apocalyptic number.

It is an amenable number.

493011289 is a deficient number, since it is larger than the sum of its proper divisors (1).

493011289 is an equidigital number, since it uses as much as digits as its factorization.

493011289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 493011289 is about 22203.8575252139. The cubic root of 493011289 is about 789.9851992100.

The spelling of 493011289 in words is "four hundred ninety-three million, eleven thousand, two hundred eighty-nine".